Type-writing machine.



A. TJBRGWJ TYE WBITEG MACHINE.

APPLIOAToN FILED HAY 6, 1904.

aftente Dec. 29, MGS.

3 SHEETS-SHEET 2.

'prep srnfrsis PATENT @Fri-rcs.

ALEXANDER .'r. snows, or* svnsccss, New vens.

, f Nacer/wee.

To all whom it may concern:

Be it known that I, ALEXANDER T. BROWN, a citizen of the United States, and resident of Syracuse, in the count-y of Onondaga and State f New 4Y0i"-:, have invented certain new and useful improvements in Type- Writing Machines, of which the following'ls a specification. v r My invention relates to typewriting .ma-

feed mechanism of such machines.

According to the pre-.sentinvention some oftliemkeyscontrol a-single type toprint a hsin'glofcharacter, and other keys are adaptedkeg.'4ll i' .i

- ly invention will be understood by reference "to `the accompanying drawings in Figure 1 is a longitudinal sectional view of a'typewrit-ing machine. 'Eig 2-is .e detail view. Fig'. 3 isa rear Iplevat-ion. Fig. 4 is a plan view off a port-ion of theige. 5 and -6 are'lop 1an views of two esiwheelsl wit their cooperating `7 isxa detail view 'of-one ofthe 8 v-illil'strates different capement dogs. Fig. capements,and Fi. styles of type adapte( my invention. s

l have shown my invention applied to a Smith Premier typewriter, but it will be obvous that most of the features thereof are y applicable to any other style of ty writer. The main frame of the machine" ustrated comprises a base 1 from which. rise posts 2 which support a top ring`j3, which, in'l'iurxl, supports transverse rails 5.' Said r V.are grooved to receive balls or other-antifriction devices 6 which together with thegrooved rails and the correspondingly grooved rails 7 ofthe carriage for said carriage. The usual roller 'platen 9 is mounted on the carriage 8. Keys 10 have their stems guided in openings in plates 11 .30 secured toor forming part of the main frarnepeil which surrounds and said key stems are pivotally connected at their lower 'ends to arms 12 projecting from roek. shafts 13 which-are journaled at 'their forward ends in said plates-.11 and at 5f? their rear ends in the main frame. Springs Y ftrjestorethe. 'rock shafts and keys to normal chinos and more especially to the carriage the' depression of any key, the carriage.

or use nearrying out 8 constitute roller beau-ingsV Patented Dec. 29, IQQS. 1904. semi no. 205,951.

its foce. end a type v19." The construction is -such that when any key is depressed the corresponding type 19 is thrown upward 4against the platen. The carriage is drawn to the operator's left hand by a spring drum 20 whic is connected tothe carriage.- by a lstrap or band 21 (Fig. 3), The springdrum 20 is mounted on one of the posts 2 which is formed with or has secured thereto a segmental flange 22 (Fig. 1) to the rear face of vvihich )a plate 23 is secured by screws 24 1g. 3 the spring drum. The arbor 25 on which the spring drum is 'o urnaled extends from the post 2 through t e plate 23and carries on its outer end a nut 26. The tension of the lspring may be. regulatedfby a ratchet wheel' 27, and a cooperating pawl-'28Hin'the usual manner. A rack bai' 3 is'securedto the rear rail`7 of face thereof. This bar meshes with a horizontal gear-'wheel 31' Vwhich is journaled beneath the tor;l plate on' a stud 32 and in tum' wit a pinion 33 whch'is integral with o'r iai to 'a sleeve 34 loosely one abrupt 'and one beveled face where y the shaft and pinion are constrain the other.

in its upper posi tion by a compression spring at onelend againstthesleeve 34 and at the otherr'eud against a collar 42 fixed to the shaft. 1 l 1 l The shaft 35 lowergend 43 reduced as shown inl Fig. 1 and journaled in a frame thereto an arm 15 which is connected by a forms part of a type bar 18 which carries at pinion are' formed with clutch teeth 40, each` `These parts constitute a guard for the .carriage and hasrack teeth on the rear on a vertical shaft 35. A, housing 36fsecured ho thering' covers .the

ell is 'so formed to turn together in one'direction but not in A. A

The sleevje34 isyieldingly held lthe shaft 35 and presses work or housing 44 which is secured'to the 2 Q- l A 907,730

' which are journaledon headed and shoulblock I5() which is mounted on the shaft 35.

' 56 journaledJ on the shaft 35 between the 4 shaft'35 by a pin 51 assi .5 against the gear u heel. Endwise movement Asaid beveled gear and hub by a nut 59 in thethe upright portions ofthe frame 44.

base portion l of the main frame. The frame 44 comprises a base and upright portions as shown and has secured thereto a top plate 45, the whole constituting a housing for the escapement mechanism.

'lhe escapcment mechanism comprises a plurality of escapement wheels connected to one another and to the "shaft 35 by epicycloidal gearing. Said train of epicycloidal gearing is in the present instances. beveled gear train and comprises two beveled gears 46 and 47 mounted on the shaft 35 and each meshing with oneor more beveled gears 48 dered screws 49, which are threaded into a It being understood that the shaft 35, by reason ofv the. sprin druin f20, constantly tends to turn in the irection of the arrowiin Fig. 3, it will be perceived that if either of the three elements of the epicycloidal train be fixed to the shaft 35 and an escapement be connected to each of the othentwoof said elements, thenfrf either escapement be operated, the shaft will be free to turn a distance determined by the design of.that esca ement, and if both escapements be operate at the same time the shaft Will be free tovturn a distance equal to the sum of 'distances determined by the two escapement mechanisms separately. In theA resent instance it is the middle element of tie train, that is to say,

The detailed construction of the? escapement dogs is illustrated in Fig.` 7. The fixed v dog 61 consists of an arm or plate of metal secured to the arm 62 by a screw 65 shown in Fig. 7 by dotted lines. The loose dog G0 is ivoted to the arm 62 by a pin 66 and said oose dog has a tail 67 through a slot v68 in which projects a headed screw 69 which is threaded into the arm 62. A com ression spring 70 surrounds the screw'i) an is se'ated in a depression 71 in the arm 62 and tends to pvress the loose dog.,r into the position shown in ig. 7, the motion of the dog under the impu se of said sprinu being limited by the head of'the screw. i ysecurin i the fixed doff to the arm 62 in the manner ere shown l and described I 'am enabled to make'such dog of harder material than the arm 62. The shaft 63 is oscillated to` operate the dogs 60 and 61 by an arm 72 which extends downward therefrom and is pivotally connected at 73 to a universal bar, 74:-l -The escapement wheel 58 is controlledbyf-two dogs 75 and 76 mounted on an arm -77 projecting from a rock shaft' which is; supported by pivot'screws 78 'and which has de ending therefrom an arm 79 vwhiehis pivota y connected at 80 to a second universal bar 81.

.The escapement dogs -75 and"76'and'tl 1eir connections are similar, infallffi'espeets to those of the other set of:` dogs, except'that, for convenience, the escapement dogs 75 and the^l block SQ on ,whichthe or-bitally movable- J7 6 are placed on the opposite sideof the shaft gears 48 are 'mountedfthatis'iixed to the shaft 35, and escapement devices are connected to the two gears 46 'and`47, these ears being loosely mounted on thel shaft.

the present instance also the escapement ve heels are secured-directly to the gear-wheels 46 and 47 'Ihe block 50 is secured tothe through said block and shaft'. 'Ihe evele gear 47 has a hub152 which is journalcd on the shaft 35 and on which an escapement wheel 53 is rigidly secured by a nut 54 which is threaded onto the hub 52 and presses the eseapement wheel of the hub 52 on the shaft 35 in one direction is prevented by the block 50 and in the other direction is prevent-ed bya collar 55 secured to the shaft. The beveled gear 46 has a hub block 50 anda collar 57 secured to said shaft and an eseapement wheel 58 is'secured to same manner as the other escapement wheel. rlhe arts being connected up in lthe manner Whie has been described, the escapement wheels 53 and 5S both tend to turn in the same direction. The motion of the escapement wheel 53 is controlled by a pair of dogs 60 and 6l mounted upon an arm 62 (Fig. 3) projecting from a rock shaft 63 (F 1) mount ed on pivot screws 64 threaded through f shafts 13 in the usual'manner.

,35 and for 'that reason the loose' dog 75 is be- 'neath thexed dog 76, whereas the loose dog 60 stands above the fxed dos` 61.

The univesal bars 74 and 81 are in theforni of grids or gates substantially like those ordinarily used in the Sxr'iithPremiertypewriter; They arearranged-across the back of the machine parallel to each other and are supported for reciprot-ato'ry movement by arms 82 (Fig. 3)

pivoed at 83 fo the framework and at 84 to' the universal bars.' aid universal bars are drawn toward the -r ght hand-*side of the machine by a spring orsprings Sronnected at one end to each of the universal bars and at the other end to 1a rod 863m which is threaded a milled nut 87 whereby the tension of the springs may be regulated. The motion of each of the universal bars under the ilnpulseof the spring is adjustably,k

limited by a screw 88 threaded through a' bracket 89 secured to the main frameand at its end engaging a portion of the universal' As here lshown the serew- 88 engages bar; the free end of one of the arms 82; The

universal bar 74 is operated by short arms 90 and the universal )ar Slby similar short arms.91 projecting` from the several rock The relation of the dogs to the esca-pement wheel and of the universal bar to the arms 9() :1nd 91 may be regulated by adjustingr the screws S8. lt will be understood, of course, that the esj operable escapements for" contro movement of said carriage in one directionp` connections betwensai tion of a carriage,.a

plural feed 'device tovxwhich said 4carriage is connectedbya bevel'gear epicycloidal train. It isalso 'broadly newjftoimpart feed/movementstoa typeiifriter'carria'geby a lurality of feed devices-n any-'character w atever, -said feed devices aving different feed values when .o erated singlfy, and having, when operate to ether, a eed value equal to the Asum of the eed values of said devices when operated singly.

A plural escapernent mechanism for controlling the carriage feed of. a ty ewriting machine, is not claimed broadly in his application, however, k.as that invention is so claimed in my Patent No. 779,497, Adated v January 10th', 1905.

What I claim as\n\ew and desire 'to secure q AIn a typevv'ritingina-chine,I the combina tion of a carriage, a` plurality of sparately ing the\ and connections between saidlrcai'riage "and said plural escapements,4 said connections inkey-controlled printing means 'trolza plurality of escapements.

cluding meanssto permit the'carriageto be/l moved independentlyg'of either of said esca ements in one directionbut-iiot ily/the ot er. f e

2. In a typewriting machine, tion of a carriage, .a plurality o vse arately ,operable escapements for contro ng the movement of saidca'ria e in one direction' 4carriage and 'sai plural escaements, said' connections beingl normally a a ted-topermt thecari e-to be moved in' ependently of 'said plura es-f capements in one -directionbut not-inthe other; and a carriage release devicefor break- \i g said connections so as to permitthe car.- iage to beinoved inde `.ndently of either of said es'capeinents in eit er direction.

, 3. ln a typewriting machine, the combinaplurality of separately operable escapements for controlling the feed o ehetombinaf said carriage; and connections .including a" clutch between said plural escapements andj saidcarriage. Y Y. l

a. In a typewritingmacbine lie combination of a 'carriage a`plurality' ,of separately 'operable escapernen sfor'controllingthefeed o said carriage';-and afcarriage release device for breakin the connections between' said carriage an Aall of saidvescap'ements.

- 5; In a typewriting machine, the combinatio'n with the series o f character keys, the key-4 controlled printing means and the carriage,

of a'plurality of escapein the feed of said carriage and a lurality universal bars controlled by, sai character keys and controlling'said escapements.

6. In a typewiiting machine, the combination with the seriesof character' keys, 4the key-controlled printing means and the carriage,

'nts for controlling extent -of Y feed t nationwith t e seriesof ke trolled printing versal bars being, contro said step-by of a pluralitypcf escapements for controlling the feed of said carriage, one of said escapements being adapted to afl'ord a greater extent of feed than another; and `a plurality fof universal bars controlled by said charaeterkeys and controlling said escapements.

7-. In aV typewriting machine, the combination with the series of character keys, the

and the carriage,of a plurality of separately operable escapements for controlling the feed of said carriage, and means whereby some of said character keys control one of said escape' lments and otherV of said character keys control anotherof said escapemen'ts.

S. Ina typewriting machine, the combination with\the series of character keys, the key-controlled-printing means and the car-. iiaveLof a pluralityof escapements for controlingthe feed of said carriage, and -means whereby some of said character keys control one of said`escapements, other of said characterdeys control anotherpf said escapements,fand,other of said character keys con- 9. In atyplewriting machine, the combination with t e series of keys, trolled printing means lurality of:escapements for controlling the` eed of; said carriage, one of said escapements being gada ted to allord a greater an` another; and means said keys control one of whereby some' of :said escapements 'and someV ariother and somea plurality of escapements.

10..In a ty writing machine, the combis, the key conmeans and t e carriage, of a plurality of universalwbars, one of said unilled by certain of said keys, another` of said universal bars being controlldd by other of plurality of said universal bars con.- trolled by still other of the keys,l and cari riage feedv devices controlled by ,said uni- 'l 11:. IIn a typewriting machine, the fconibination with the cari- 1a e 'of a plurality of separately operable stepy-step devices for said carriage, one of said step-by-step devices bein adapted to afford a single letterspace fee to said carriage' and another of `ste vdevic'esbeing adapted to alford a multip e letter-space' feed to said carriage; vand means for operating either of said step-by-step devices. l v f 12. 'In a typewriting machine, thev cornbin'ation 4wit the carriage, of-a plurality ofstepbystep devices for said carriage, one of said step-bystep devices being adapted to afford a greater feed, mo'vement than another; and means fonoperating either of said ste -by-step devices singlly or for operating a p urality of them simu taneously.V

13. In a-typ'ewriting machine, the comthe key conand the carriage, of a said keys, and a Y bination with' the carriage, of two separately i capements, and character keys arranged to operable step-by-step devices for said carriage, one of said step-by-step vdevices when operated alone being adapted to afford a single letter-space feed to the carriage, the other one when operated alone being adapted to afford a double letter-space feed to the carriage, and the two when operated together. being adapted to afford a triple letter-space feed-to the carriage.

14. In a ty'pewrit'ing machine, the combination with-printing instrumentalities of keys, each adapted to'print Va single character; a universal bar controlled by Asaid keys; keys, each adapted to print two characters; a second universalbar controlled by said keys; other keys, each adapted to print three characters and to control both universal bars; a carriage; and means whereby the first universal bar affords a singleletterspace feed to said carriage,' the second universal bar affords a double letter-space feed to the carriage, and the two universal bars .when operated together afford a triple letter-space feed to the carriage.

15. In a typewriting machine, the combination with the carriage, of a plurality of step-by-ste devices, and connections between-sai step-by-step devices and. said carriage, said connections including a bevelgear e icycloidal train.

16. n a typewriting machine, the combination with the carriage, of a shaft; an orbitally movable gear having its bearing fixed to said shaft; two rotary gears loose on said shaft and each meshing with said orbitally movable gear; two escapements, vone controlling each of said rotary gears; and means connecting said shaft to said carriage.'

17. In a ty ewriting machine, the combination with t e'carriage, of an epicycloidal train com rising three elements, one of said elements eing an orbitally movable member having a gear journaled thereto and the other two elements being rotary gears; two escapements controlling two of said elements respectively; a shaft to which the remaining element is fixed and on wl'ich the escapement controlled clernents are jornaled; and means whereby said shaft controls said carriage.

18. In' a ty ewriting machine, the combination with t ie carriage,-of a shaft for controlling the feed of said carriage; an orbitally nioA 'able gear haing its bearing fixed to said" shaft; two rotary gears ournaled on said shaft on opposite sides o said bearing and meshing withsaid orbitally movable gear, each of said rotary gears hazing an escapenient wheel fixedly connected thereto; and

feed dogs coperating with said escapementv wheels. 19. In a typewriting machine, the combination with the carriage, of a plurality of esoperate said escapements to feed. the carriage different distances.

20. In a t-ypcwriting machine, the combination with the carriage, of a plurality of feed de-.ices for said carriage, said feed devices hazin different feed values; and means whereby, w en any of said feed devices is operated alone, the carriage is fed a.distance equal to the feed value of the particular feed de'.ice operated, and when more than one of said feed dezices are operated, the carria eis fed a distance e ual to the sum of the eed values of the fee dexices operated.

21` In an escapement mechanism,y the combination of a ,pizotally mounted arm; a

fixed dog secured to said piroted arm; a loose l 22. Iii a typewriting machine, the combi-y nation' with the carriage, of a series of keys ;4 a horizontall reciprocatin uni'.'ersal bell-crank ever, a Tertica ly disposed arm of which is connected directly to said universal bar and a horizontally disposed arm of which carries feed dogs; and a horizontally disposed ratchet wheel controlled by said feed dogs and controlling said carriage.

23. In a ty ewriting machine, the combination with t e carriage, of a vertical shaft geared to said carriage; a plurality of escapement Wheels mounted on said shaft, one abore another; separate sets of feed dogs co erating with each of said escapement whee and means for operating said feed dogs.

24. In a typewriting machine, the combination with the carriage, of a shaft geared to said carriage; a plurality of esca ement wheels mounted on said shaft; and a p urality of sets of escapement dogs arranged on different sides of said shaft and cooperating with said escapement wheels.

25. The combination of an epicycloidal gear train comprising two beveled' gears mounted to rotate about the saine axis, a planetary be 'eled gear Vin mesh with said two gears and mounted for planetary motion' about said axis; and rotary devices connected with said two' beyeled gears and. sai planeta gear.

Signe at Syracuse, in the county of Onondaga and State of New York this 30th day of A Y QE'. TOMLINsoN, GEO.- C. CARHART.

bar; a' 

